Improvement in lamp-shades



M. H. COLLINS.

Improvement in. Lamp-Shades. 113,982.,

Patented April 25 MH. www.

pero che.

`MICHAEELH. COLLINS, OE CHELSEA, MASSACHUSETTS.

Letters Patent No. 113,982, dated April 25, 1871. A

IMPROVEMENT IN LAMP-SHADES.

The Schedule referred toin these Letters Patent and making part of thesame.

To all to 'whom .these presents ma/y come:

Be it known that I, MICHAEL H. COLLINS, of Chelsea, in the county ofSuiolk andV State oi'Massa 'chusetts, have invented certaiu'new anduseful Iznprovemeuts'in Lamp-Shades ;4 and do hereby declare the same tobe fully described in the following specilication and represented intheaccompanying drawing, of which- Fgure 1 exhibits a perspective view ofthe shade as made in accordance with my invention-and axed' to achimney. l

Figure 2 is a similar view of the superior or spring portion.

Figure 3 is a vertical and central section of the shade as applied to achimney.

My invention relates to that class of metallic shades in which thesprings and body ofthe shade are formed in two separate portions.

In the said drawing- A denotes a chimney.

B is the body of the shade, which is of a frustoconical shape, and maybe formed of a disk of metal, (having its center perforated or punchedont,) and pressed into the required sh'ape; or it may be coniposed ofone or more segments, properlysccnured together and shaped into lthefrustuin of a cone or pyramid.

C is the superior or spring portion, which i's provided with a series ofradial iingers or springs, D'D, &c., of different lengths, whose freeends boar against the outer surface vof the chimney, and by theirtension against the same maint-ain the shade in posit-ion thereon.

Thesaid part C may also be formed of' a disk of metal, the central partbeingstamped out to form the fingers; or it may be made of one or moresegments so shaped and united as to give the desired form.

The two portions B C, so formed, are to be united by riveting. seaming,or soldering, as may be desir. able. Thus it will be seen that the twoparts B C of the shade are formed separately, each being' made from asingle disk of' metal and afterward united; or each ,part being made upof one or more segments so shaped and connected as to form the frusturnof a cone, and the two parts next secured together.

By forming the two parts separately, and each of a single, piece, thepartB may be made from a disk of soft metal spun or pressed into shape,while the part C may be of steel or a hard metal, for giving.1 to thesprings a more permanent elastic power.

By making each of' the parts B C independently and of a series ofsegments, thelower segments may. be composed of a softer and cheaperinet-al than the upper portion or series, which requires a metal of aharder or higher grade, such as will withstand the action of the heatand maintain the norual elasticity of the springs. l 1

rihe body of the shade may he plain or unperforated, and may be paintedin any desirable color and ornamented as fancy may dictate.

I prefer to form in the body of the shade a series of perforations, E E,85e., for two reasons:

First, to render the shade lighter, so that springs of less stiffness ortension are required; and

Second, to relieve the monotony of the shadeby applying to such openingsa series ot' ornamental tablets, pictures, or transparencies, F, wherebythe beauty of the shade is enhanced.

' The next part of my invention is the peculiar mode of aiiixing thetablets or transparencies to the shade. i

The openings having been stamped' out of the de? sired form, a tablet ortransparency of a corresponding shape, Vbut of larger area, and having acoating of gluten applied to its inner face, is to be placed upon theshade over each opening, and so as to overlap its edges.

A corresponding disk of paper or other transparent material, havinganadhesive matter applied to its in- -ner face, is to be placed upon theopposite side ofthe shade and over each opening,` and so as to overlapthe edge thereof; or instead of the'backing being ol' a whole piece itmay be a circumscribing band applied in a similar manner, so as tooverlap theedge of the opening and the adjacent surface of the tablet;or the tablet may be applied to the inner face of the shade, and there-enforce or circumscribing band applied to theo'uter face. The wholeis next to be put in a press and rrnly connected together.

To make a nish to the picture a bead may he.

formed around each opening.

Having described my'inveution.

What I claim is as follows:

l. A shade fora lamp or Argand burner as made in two frusto-conicalonpyrainidal portions, C,

formed, constructed, and combined together in inanf ner as set forth.

2. In a metallic shade composed of' a'frusto-conical

